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Version 1.9 Build 1556

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imagerpositiontest - Tool

	Package	synthesis
	Module	synthesistester

Postscript file available

tool for testing the validity of imager and pimager results

Description
imagerpositiontest is a tool for testing the validity of results from imager and pimager. It does this by generating a simulated dataset (so the source distribution is known), imaging that dataset, and then comparing the positions of the imaged sources with their known positions.

Constructors

imagerpositiontest	Construct an imagerpositiontest tool

Functions

cleanup	Clean up from a previous run.
done	Release the resources used by this tool.
dotests	Run the tests.
findsource	Locate source positions in an image
get_beam	Get the restoring beam plus some extra info from the restored image.
get_center_position	Get the center position for the map that will be created.
get_componentlisttable	Get the name of the disk table containing the positions of the simulated components.
get_corresponding_comps	Return the map of found components in the restored image to their true component counterparts.
get_rms	Get the rms from the restored map in an "intelligent" fashion.
get_seed	Get the seed for the random number generator
get_source_box	Get the pixel coordinates of a box encompassing the simulated sources.
make_default_cl	Make the default simulated component list.
make_default_simulator	Create the default simulator.
make_image	Make the images
make_model_image	Make an image of the simulated component distribution.
make_ms	Make the MS containing the simulated data
set_clean_mask	Specify how the clean mask should be set.
set_clean_parms	Set up the parameters for a clean test.
set_componentlisttable	Set the name of the componentlist table.
set_deconvolution_function	Set the decnvolution function to use.
set_imaging_data_parms	Set the MS parameters to be used for imaging.
set_imaging_options	Set some general options for subsequent processing.
set_imaging_parms	Set the parameters to be used for imaging.
set_imaging_tool_type	Set the imaging tool to test.
set_mem_parms	Set parameters to be used in a mem deconvolution.
set_mfcontrol_parms	Set control parameters for multi-field imaging tests.
set_pimager_numprocs	Set the number of processors available to pimager.
set_seed	Set the seed used by the random number generator for creating the simulated components.
set_sim_parms	Set up the parameters to be used when creating the default simulator.
set_simulator	Set an alternate simulator to be used for generating the MS.
set_tolerance	Set the tolerance allowed for a position test to pass.
sourcecompare	Compare the found source positions with the true source positions.
view	View the restored image.